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Two compounds have the same empirical formula do theynecessairily have the same molecular formula?
Wiki User
∙ 14y ago
No? Consider starch and cellulose; same formula extremely different properties.
Wiki User
∙ 15y ago
No, compounds with the same empirical formula can have different molecular formulas. This is because the empirical formula gives the simplest whole-number ratio of atoms in a compound, while the molecular formula gives the actual number of each type of atom in a molecule.
Wiki User
∙ 13y agoYes they can.
For example CH2O is the empirical formula for both formaldehyde(CH2O) and glucose(C6H12O6)
Wiki User
∙ 14y agono
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Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
The percent composition only tells us the relative proportions of the elements present in the compound, not the specific arrangement of atoms within the molecule. Different compounds can have the same percent composition but different structures, leading to different molecular formulas. For example, both ethanol (C2H6O) and dimethyl ether (C2H6O) have the same percent composition, but are different compounds with distinct structures.
How are the empirical and molecular for a compound related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
How are empirical and molecular formulas for a compound relation?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
How to calculate empirial formula from molecular formula?
To calculate the empirical formula from a molecular formula, divide the subscripts in the molecular formula by the greatest common factor to get the simplest ratio of atoms. This simplest ratio represents the empirical formula.
Would ionic or covalent molecules use the molecular formula or empirical formula?
What you write for an ionic compound is called the formula unit, but the formula unit is almost always the same as the empirical formula. The answer to your question could not be the molecular formula because an ionic compound is not a molecule.
How are the Empirical and molecular formulas for compounds related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
What is more useful for determining a compounds identity Empirical formulaPercent compositionOR Molecular formula?
molecular formula
How are the empirical and molecular formulas for a compound. Related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
Which compound has the empirical formula ch2o?
CH2O is not only the empirical but also the molecular formula for formaldehye. It is also the empirical but not the molecular formula for hydroxyacetaldehyde, acetic acid, methyl formate, 1,3-dihydroxyacetone, and many other compounds.
What molecular formulas are also an empirical formula?
Molecular formulas that are also empirical formulas include compounds like water (H2O), methane (CH4), and hydrogen peroxide (H2O2). In these cases, the molecular formula is the same as the empirical formula because the compounds consist of only one type of atom.
How are the empirical and molecular for a compound related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
How are empirical and molecular for a compound related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
The percent composition only tells us the relative proportions of the elements present in the compound, not the specific arrangement of atoms within the molecule. Different compounds can have the same percent composition but different structures, leading to different molecular formulas. For example, both ethanol (C2H6O) and dimethyl ether (C2H6O) have the same percent composition, but are different compounds with distinct structures.
How are empirical and molecular formulas for a compound relation?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
How are the empirical molecular formulas for a compound related?
A molecular formula is identical to the empirical formula, and is based on quantity of atoms of each type in the compound.The relationship between empirical and molecular formula is that the empirical formula is the simplest formula, and the molecular can be the same as the empirical, or some multiple of it. An example might be an empirical formula of C3H8. Its molecular formula may be C3H8 , C6H16, C9H24, etc. Looking at it the other way, if the molecular formula is C6H12O6, the empirical formula would be CH2O.
How to calculate empirial formula from molecular formula?
To calculate the empirical formula from a molecular formula, divide the subscripts in the molecular formula by the greatest common factor to get the simplest ratio of atoms. This simplest ratio represents the empirical formula.
How do you calculate Molecular formula from empirical formulaWhat could you do with that information to determine that the empirical and molecular formulas are related to one another by a factor of 6?
To calculate the molecular formula from the empirical formula, you need to determine the molecular mass of the compound and then divide it by the empirical formula mass to find the factor between the two. If the factor is 6, it means the molecular formula is 6 times the empirical formula, indicating that there are 6 times as many atoms of each element in the molecular formula compared to the empirical formula.
